二进制文件读写
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main()
{
struct Buffer
{
char time[10];
char name[10];
};
Buffer buffer[3];
memset( buffer, 0, sizeof(buffer) );
strcpy( buffer[0].time, "20070628" );
strcpy( buffer[0].name, "flow1" );
strcpy( buffer[1].time, "20070629" );
strcpy( buffer[1].name, "flow2" );
strcpy( buffer[2].time, "20070629" );
strcpy( buffer[2].name, "flow3" );
ofstream out;
out.open( "data", ios::binary );
if ( !out )
{
cout << "Failed to open file" << endl;
return -1;
}
out.write( ( char * )buffer, sizeof(buffer) );
out.close();
return 0;
}
使用下列语句读数据时最后会读到一个空记录,不知道为什么,请高手指教
while ( ! in.eof() )
{
memset( &buffer, 0, sizeof(buffer) );
in.read ( (char *)&buffer, sizeof( buffer ) );
.....
}